Patent US3172334A successfully refreshed from Google Patents.
US3172334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power brake booster
Assignee: Motors Liquidation Co
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Filing: 1958-04-09
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Granted: 1965-03-09
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Expires: 1978-04-09
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Wuellner
- 👤 George E Kellogg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:43
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/573; B60T13/575; B60T13/241; B60T13/242; B60T13/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2395223A
Cited
US2818835A
Cited
US2685170A
Cited
US2690740A
Cited
US2832316A
Cited
US2807239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |